518993463 has 8 divisors (see below), whose sum is σ = 695014000. Its totient is φ = 344484288.

The previous prime is 518993407. The next prime is 518993477. The reversal of 518993463 is 364399815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 518993463 - 2⁶ = 518993399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518998463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377038 + ... + 378411.

It is an arithmetic number, because the mean of its divisors is an integer number (86876750).

Almost surely, 2^518993463 is an apocalyptic number.

518993463 is a deficient number, since it is larger than the sum of its proper divisors (176020537).

518993463 is a wasteful number, since it uses less digits than its factorization.

518993463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755681.

The product of its digits is 699840, while the sum is 48.

The square root of 518993463 is about 22781.4280281110. The cubic root of 518993463 is about 803.6259692499.

The spelling of 518993463 in words is "five hundred eighteen million, nine hundred ninety-three thousand, four hundred sixty-three".